File "commenting-on-the-exams-1.html"

Path: /ThinkIB/chem/chemistry/page/16319/commenting-on-the-exams-1html
File size: 91.89 KB
MIME-type: text/html
Charset: utf-8

 
Open Back
<!DOCTYPE html>
<html lang="en">
<head>
	    <!-- Google Tag Manager -->
    <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
        new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
        j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
        'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
        })(window,document,'script','dataLayer','GTM-K5VSFSN');
    </script>
    <!-- End Google Tag Manager -->
	<meta http-equiv="x-ua-compatible" content="IE=Edge">
	<title>DP Chemistry: Commenting on the exams</title>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta name="robots" content="index, follow"><meta name="googlebot" content="noarchive">
	<!-- Removed by WebCopy --><!--<base href="https://www.thinkib.net">--><!-- Removed by WebCopy --><meta name="keywords" content="chemistry, inthinking, IB, IBDP, IBMYP, thinkib, baccalaureate, education"><meta name="description" content="All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome of that meeting. The comments should be made officially on the Teacher Feedback form (previously known as the G2 form). In the past this was filled in mIB Docs (2) Teamally and sent to IBCA. Now the form can..."><meta prefix="og: http://ogp.me/ns#" property="og:title" name="og:title" content="DP Chemistry: Commenting on the exams">
  <meta prefix="og: http://ogp.me/ns#" property="og:image" content="media/ib/chemistry/images/Exams/G2 organic1.jpg">
  <meta prefix="og: http://ogp.me/ns#" property="og:description" name="og:description" content="All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome of that meeting. The comments should be made officially on the Teacher Feedback form (previously known as the G2 form). In the past this was filled in mIB Docs (2) Teamally and sent to IBCA. Now the form can...">
  <meta prefix="og: http://ogp.me/ns#" property="og:url" name="og:url" content="https://www.thinkib.net/chemistry/page/16319/commenting-on-the-exams">
  <meta prefix="og: http://ogp.me/ns#" property="og:site_name" name="og:site_name" content="Subscription websites for IB teachers & their classes">
  <meta prefix="og: http://ogp.me/ns#" property="og:locale" name="og:locale" content="en">
  <meta prefix="og: http://ogp.me/ns#" property="og:type" name="og:type" content="website">
  <meta name="description" content="All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome of that meeting. The comments should be made officially on the Teacher Feedback form (previously known as the G2 form). In the past this was filled in mIB Docs (2) Teamally and sent to IBCA. Now the form can...">
  <meta name="image" content="media/ib/chemistry/images/Exams/G2 organic1.jpg">
  <meta name="keywords" content="Chemistry, Inthinking, IB, IBDP, IBMYP, Thinkib, Baccalaureate, Education, inthinking, thinkib, baccalaureate, education, diploma, international baccalaureate, international schools, high school degree, middle years, middle years programme, international education, IB diploma">
  <meta itemprop="name" content="DP Chemistry: Commenting on the exams">
  <meta itemprop="description" content="All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome of that meeting. The comments should be made officially on the Teacher Feedback form (previously known as the G2 form). In the past this was filled in mIB Docs (2) Teamally and sent to IBCA. Now the form can...">
  <meta itemprop="image" content="media/ib/chemistry/images/Exams/G2 organic1.jpg">
  <meta name="twitter:card" content="summary_large_image">
  <meta name="twitter:title" content="DP Chemistry: Commenting on the exams">
  <meta name="twitter:description" content="All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome of that meeting. The comments should be made officially on the Teacher Feedback form (previously known as the G2 form). In the past this was filled in mIB Docs (2) Teamally and sent to IBCA. Now the form can...">
  <meta name="twitter:image" content="media/ib/chemistry/images/Exams/G2 organic1.jpg">
  <meta name="twitter:creator" content="@InThinker">
	<link href="../../../css/bootstrap.min-1.css" rel="stylesheet" media="screen">
  <link href="../../../css/font-awesome-4.7.0/css/font-awesome.min-1.css" rel="stylesheet">
	<link href="../../../css/top-nav.min-1.css?v=202211301945" rel="stylesheet" media="screen">
	<link href="../../../css/style.min-1.css?v=202212191040" rel="stylesheet" media="screen">
	<link href="../../../css/style-ib.min-1.css?v=202211282000" rel="stylesheet" media="screen">
	<link rel="stylesheet" type="text/css" href="../../../js/jq-fancybox/jquery.fancybox.min-1.css">
	<link href="../../../js/jq-fancybox/jquery.fancybox.min-1.css" type="text/css" rel="stylesheet">
	<script>function inIframe () {try {return window.self !== window.top;} catch (e) {return true;}}if( inIframe() ) { window.location.href = "/mb/embed?mbtest=1&ref=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"; }</script><link rel="stylesheet" href="../../../assets/css/ckeditor5-custom-1.css" type="text/css"><link rel="stylesheet" href="../../../css/snippets.min-1.css?v=202210181500"><link rel="stylesheet" href="../../../css/article.min-1.css?v=202212151220"><link rel="stylesheet" href="../../../css/toplevel-map-1.css"><link rel="stylesheet" href="../../../css/side-nav.min-1.css?v=20220520"><script src="../../../js/localdates.min-1.js?v=202009290900"></script><script src="../../../js/ifvisible.min-1.js"></script><script>ifvisible.setIdleDuration(300);</script><script>var tibSitename = "chemistry";</script>
    <script>
        const SITE_TAG = "ib"
        const SITE_WEB = "ThinkIB.net"
        const SITE_DOMAIN = "www.thinkib.net"
        const SITE_URI = "https://thinkib.net"
        const SITE_CLIENT_CODE = "TIB000001"
        let imageThinker = "../../../img/header-thinker-ib.svg";
        let imageStudent = "img/header-student-thinkib.svg";
    </script>
<script>var userHash = "IB Docs (2) Team", userTicket = "IB Docs (2) Team";</script><script src="../../../js/user/local-stats.min-1.js?v=202102101800"></script><link rel="apple-touch-icon-precomposed" sizes="57x57" href="../../../img/favicon/thinkib/apple-touch-icon-57x57-1.png"><link rel="apple-touch-icon-precomposed" sizes="114x114" href="../../../img/favicon/thinkib/apple-touch-icon-114x114-1.png"><link rel="apple-touch-icon-precomposed" sizes="72x72" href="../../../img/favicon/thinkib/apple-touch-icon-72x72-1.png"><link rel="apple-touch-icon-precomposed" sizes="144x144" href="../../../img/favicon/thinkib/apple-touch-icon-144x144-1.png"><link rel="apple-touch-icon-precomposed" sizes="60x60" href="../../../img/favicon/thinkib/apple-touch-icon-60x60-1.png"><link rel="apple-touch-icon-precomposed" sizes="120x120" href="../../../img/favicon/thinkib/apple-touch-icon-120x120-1.png"><link rel="apple-touch-icon-precomposed" sizes="76x76" href="../../../img/favicon/thinkib/apple-touch-icon-76x76-1.png"><link rel="apple-touch-icon-precomposed" sizes="152x152" href="../../../img/favicon/thinkib/apple-touch-icon-152x152-1.png"><link rel="icon" type="image/png" href="../../../img/favicon/thinkib/favicon-196x196-1.png" sizes="196x196"><link rel="icon" type="image/png" href="../../../img/favicon/thinkib/favicon-96x96-1.png" sizes="96x96"><link rel="icon" type="image/png" href="../../../img/favicon/thinkib/favicon-32x32-1.png" sizes="32x32"><link rel="icon" type="image/png" href="../../../img/favicon/thinkib/favicon-16x16-1.png" sizes="16x16"><link rel="icon" type="image/png" href="../../../img/favicon/thinkib/favicon-128-1.png" sizes="128x128"><meta name="application-name" content="&nbsp;"><meta name="msapplication-TileColor" content="#FFFFFF"><meta name="msapplication-TileImage" content="https://www.thinkib.net/img/favicon/thinkib/mstile-144x144.png"><meta name="msapplication-square70x70logo" content="https://www.thinkib.net/img/favicon/thinkib/mstile-70x70.png"><meta name="msapplication-square150x150logo" content="https://www.thinkib.net/img/favicon/thinkib/mstile-150x150.png"><meta name="msapplication-wide310x150logo" content="https://www.thinkib.net/img/favicon/thinkib/mstile-310x150.png"><meta name="msapplication-square310x310logo" content="https://www.thinkib.net/img/favicon/thinkib/mstile-310x310.png">
</head>

<body onunload="" class="">
	    <!-- Google Tag Manager (noscript) -->
    <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-K5VSFSN" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
    <!-- End Google Tag Manager (noscript) -->
    <div id="header">
    <div class="wmap">
        <div class="layout-wrapper">
            <div class="container-fluid">
                <div class="pull-right visible-phone">
                    <a href="https://www.inthinking.net">
                        <img class="header-logo" src="../../../img/header-logo-1.svg" style="height: 45px; width: auto;">
                    </a>
                </div>
                <div class="visible-phone" style="clear:both;"></div>

                <div class="pull-left">
                	<h1><a href="/chemistry"><span style="">IBDP Chemistry brought to you by the IB Docs (2) Team</span></a></h1>
                	<p class="slogan hidden-phone"><span class="slogan"><em>InThinking</em> Subject Sites for teachers &amp; their classes</span></p>
                    <p class="hidden-phone">Website by <strong>Geoffrey Neuss</strong></p>
                    <p class="hidden-phone">Updated 2 JIB Docs (2) Teamary 2023</p>
                </div>
                <div class="visible-phone" style="clear:both;"></div>

                <div class="pull-right text-right header-right">
                    <a class="hidden-phone" href="https://www.inthinking.net">
                        <img class="header-logo" src="../../../img/header-logo-1.svg" style="height: 70px; width: auto;">
                    </a>
                    <div class="search">
                        <a href="#" class="toggle-menu-search" data-toggle="dropdown">
                            <i class="fa fa-2x fa-search"></i>
                        </a>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>


	<div id="topmenu">
		<div class="layout-wrapper">
			<div>
				<nav class="top-nav"><ul class="level-0"><li class=""><a href="../../../chemistry.html"><i class="fa fa-home"></i> Home</a><ul><li class=""><a href="/subscribe"><i class="fa fa-globe fixwidth"></i> Subscribe today</a></li><li class=""><a href="chemistry/sitemap"><i class="fa fa-sitemap fixwidth"></i> Sitemap</a></li><li class=""><a href="chemistry/last-updates"><i class="fa fa-file-text-o fixwidth"></i> Latest updates</a></li><li class=""><a href="chemistry/teaching-materials"><i class="fa fa-puzzle-piece fixwidth"></i> Teaching materials</a></li><li class=""><a href="chemistry/blog"><i class="fa fa-paperclip fixwidth"></i> Blog</a></li><li class=""><a href="chemistry/twitter"><i class="fa fa-twitter fixwidth"></i> Tweets</a></li><li><a><i class="fa fa-external-link fixwidth"></i> <em>InThinking</em> sites</a><ul><li><a class="text-right" href="https://thinkib.net"><span class="pull-left"> All subjects</span> <em style="opacity: .8;">www.thinkib.net</em></a></li><li><a href="https://www.thinkib.net/biology" target="_blank">IBDP Biology</a></li><li><a href="https://www.thinkib.net/businessmanagement" target="_blank">IBDP Business Management</a></li><li><a href="https://www.thinkib.net/economics" target="_blank">IBDP Economics</a></li><li><a href="https://www.thinkib.net/englishalit" target="_blank">IBDP English A Literature</a></li><li><a href="https://www.thinkib.net/englishalanglit" target="_blank">IBDP English A: Language &amp; Literature</a></li><li><a href="https://www.thinkib.net/englishb" target="_blank">IBDP English B</a></li><li><a href="https://www.thinkib.net/ess" target="_blank">IBDP Environmental Systems &amp; Societies</a></li><li><a href="https://www.thinkib.net/frenchb" target="_blank">IBDP French B</a></li><li><a href="https://www.thinkib.net/geography" target="_blank">IBDP Geography</a></li><li><a href="https://www.thinkib.net/german" target="_blank">IBDP German A: Language &amp; Literature</a></li><li><a href="https://www.thinkib.net/history" target="_blank">IBDP History</a></li><li><a href="https://www.thinkib.net/mathanalysis" target="_blank">IBDP Maths: Analysis &amp; Approaches</a></li><li><a href="https://www.thinkib.net/mathapplications" target="_blank">IBDP Maths: Applications &amp; Interpretation</a></li><li><a href="https://www.thinkib.net/physics" target="_blank">IBDP Physics</a></li><li><a href="https://www.thinkib.net/psychology" target="_blank">IBDP Psychology</a></li><li><a href="https://www.thinkib.net/leadership" target="_blank">IB School Leadership</a></li><li><a href="https://www.thinkib.net/spanisha" target="_blank">IBDP Spanish A</a></li><li><a href="https://www.thinkib.net/spanish-abinitio" target="_blank">IBDP Spanish Ab Initio</a></li><li><a href="https://www.thinkib.net/spanishb" target="_blank">IBDP Spanish B</a></li><li><a href="https://www.thinkib.net/teachmaths" target="_blank">teachMathematics</a></li><li><a href="https://www.thinkib.net/visualarts" target="_blank">IBDP Visual Arts</a></li><li><a href="https://www.thinkib.net/myp-englishalanglit" target="_blank">IBMYP English Language &amp; Literature</a></li><li><a href="https://www.thinkib.net/myp-resources" target="_blank">IBMYP Resources</a></li><li><a href="https://www.thinkib.net/myp-spanishb" target="_blank">IBMYP Spanish Language Acquisition</a></li><li><a href="https://www.thinkib.net/ibcp" target="_blank">IB Career-related Programme</a></li><li><a href="https://www.thinkigcse.net" target="_blank"><strong>ThinkIGCSE</strong> - <em>Subject sites for IGCSE teachers</em></a></li></ul></li></ul><li><li><a href="../16256/start-here-1.html">Start here</a><ul class="level-1"><li><a href="../36257/how-to-navigate-the-site-1.html">How to navigate the site</a></li><li><a href="../24826/using-student-access--1.html" class="father">Using student access </a><ul class="level-2"><li><a href="../27330/creating-student-accounts--1.html">Creating student accounts  </a></li><li><a href="../32806/short-cut-to-give-students-access-to-a-page-1.html">Short cut to give students access to a page</a></li><li><a href="../27328/setting-assignments-1.html">Setting assignments</a></li><li><a href="../27351/managing-student-accounts-mark-book-1.html">Managing student accounts & mark book</a></li><li><a href="../27362/using-qbank-1.html">Using qBank</a></li></ul></li><li><a href="../16257/for-teachers-new-to-ib-chemistry-1.html" class="father">For teachers new to IB Chemistry</a><ul class="level-2"><li><a href="../16258/dart-board-chemistry-1.html">&#039;Dart board&#039; chemistry</a></li><li><a href="../16274/essential-resources-1.html">Essential resources</a></li><li><a href="../16276/syllabus-1.html">Syllabus</a></li><li><a href="../16278/possible-teaching-schedule-1.html">Possible teaching schedule</a></li></ul></li></ul></li><li><a href="../46318/teaching-learning-resources-1.html">Teaching, learning & resources</a><ul class="level-1"><li><a href="../17394/approaches-to-teaching-1.html" class="father">Approaches to teaching</a><ul class="level-2"><li><a href="../17395/teaching-styles--1.html">Teaching styles </a></li><li><a href="../17396/teaching-skills--1.html">Teaching skills </a></li><li><a href="../17398/workshops--1.html">Workshops </a></li><li><a href="../17397/teacher-recommendations--1.html">Teacher recommendations </a></li></ul></li><li><a href="../27280/approaches-to-learning-1.html" class="father">Approaches to learning</a><ul class="level-2"><li><a href="../27208/thinking-skills-1.html">Thinking skills</a></li><li><a href="../27216/reflection-1.html">Reflection</a></li><li><a href="../27209/communication-skills-1.html">Communication skills</a></li><li><a href="../27211/social-skills-1.html">Social skills</a></li><li><a href="../27232/self-management-1.html">Self-management</a></li><li><a href="../27312/research-1.html">Research</a></li></ul></li><li><a href="../17120/resources-1.html" class="father">Resources</a><ul class="level-2"><li><a href="../17119/ib-specific-books-1.html">IB specific books</a></li><li><a href="../17121/general-text-books-1.html">General text books</a></li><li><a href="../17131/post-ib-text-books-1.html">Post IB text books</a></li><li><a href="../17132/journals-1.html">Journals</a></li><li><a href="../17133/newspaper-articles-1.html">Newspaper articles</a></li><li><a href="../17124/demonstrations-1.html">Demonstrations</a></li><li><a href="../17139/chemistry-videos-1.html">Chemistry videos</a></li><li><a href="../17140/web-links-1.html">Web links</a></li><li><a href="../17138/chemistry-apps-1.html">Chemistry apps</a></li><li><a href="../17348/novel-uses-for-the-ib-data-booklet--1.html">Novel uses for the IB data booklet </a></li><li><a href="../17392/books-for-enjoyment--1.html">Books for enjoyment </a></li></ul></li><li><a href="../27313/unit-plans-1.html">Unit plans</a></li><li><a href="../22523/critical-thinking-1.html">Critical thinking</a></li><li><a href="../18044/do-you-speak-ib-1.html" class="father">Do you speak IB?</a><ul class="level-2"><li><a href="../17382/changes-to-terminology-1.html">Changes to terminology</a></li></ul></li><li><a href="../32761/school-closures-and-distance-learning-1.html">School closures and distance learning</a></li></ul></li><li><a href="../16347/core-ahl-1.html">Core & AHL</a><ul class="level-1"><li><a href="../16344/syllabus-1.html">Syllabus</a></li><li><a href="../16329/teaching-each-topic-sub-topic-1.html" class="father">Teaching each topic & sub-topic</a><ul class="level-2"><li><a href="../16328/topic-1-1.html">Topic 1</a></li><li><a href="../16907/topics-2-12--1.html">Topics 2 & 12 </a></li><li><a href="../17021/topics-3-13-1.html">Topics 3 & 13</a></li><li><a href="../17114/topics-4-14-1.html">Topics 4 & 14</a></li><li><a href="../17669/topics-5-15--1.html">Topics 5 & 15 </a></li><li><a href="../17848/topics-6-16-1.html">Topics 6 & 16</a></li><li><a href="../18038/topics-7-17--1.html">Topics 7 & 17 </a></li><li><a href="../18120/topics-8-18--1.html">Topics 8 & 18 </a></li><li><a href="../18350/topics-9-19-1.html">Topics 9 & 19</a></li><li><a href="../18475/topics-10-20--1.html">Topics 10 & 20 </a></li><li><a href="../17285/topics-11-21--1.html">Topics 11 & 21 </a></li></ul></li><li><a href="../16441/the-nature-of-science-1.html" class="father">The Nature of Science</a><ul class="level-2"><li><a href="../16450/key-terms-concepts-1.html">Key terms & concepts</a></li><li><a href="../34566/nos-critical-thinking-1.html">NOS & Critical Thinking</a></li><li><a href="../32100/how-the-elements-were-named-1.html">How the elements were named</a></li><li><a href="../36753/the-culture-of-chemistry-1.html">The Culture of Chemistry</a></li><li><a href="../17333/nature-of-science-questions-1.html">Nature of Science questions</a></li></ul></li><li><a href="../16413/incorporating-im-tok-utilization-etc-1.html" class="father">Incorporating IM, TOK, &#039;Utilization&#039; etc.</a><ul class="level-2"><li><a href="../16414/topic-1-1.html">Topic 1</a></li><li><a href="../16916/topics-2-12-1.html">Topics 2 & 12</a></li><li><a href="../17023/topics-3-13--1.html">Topics 3 & 13  </a></li><li><a href="../17055/topics-4-14--1.html">Topics 4 & 14 </a></li><li><a href="../17270/topics-5-15--1.html">Topics 5 & 15  </a></li><li><a href="../17854/topics-6-16--1.html">Topics 6 & 16 </a></li><li><a href="../18041/topics-7-17--1.html">Topics 7 & 17 </a></li><li><a href="../18099/topics-8-18-1.html">Topics 8 & 18</a></li><li><a href="../18349/topics-9-19--1.html">Topics 9 & 19 </a></li><li><a href="../18420/topics-10-20-1.html">Topics 10 & 20</a></li><li><a href="../17269/topics-11-21--1.html">Topics 11 & 21 </a></li></ul></li><li><a href="../17866/utilization-relationships-between-topics--1.html" class="father">&#039;Utilization&#039; - Relationships between topics </a><ul class="level-2"><li><a href="../17867/relating-topics-4-14-to-all-the-other-topics-1.html">Relating Topics 4 & 14 to all the other topics</a></li><li><a href="../17868/example-of-connections-1.html">Example of connections</a></li><li><a href="../34404/hydroxychloroquine-ib-chemistry-1.html">Hydroxychloroquine & IB Chemistry</a></li><li><a href="../35418/ammonium-nitrate-ib-chemistry-1.html">Ammonium nitrate & IB Chemistry</a></li></ul></li><li><a href="../16685/multiple-choice-tests-for-each-topic-1.html" class="father">Multiple choice tests for each topic</a><ul class="level-2"><li><a href="../16687/sl-questions-by-topic-1.html">SL Questions by topic</a></li><li><a href="../16688/hl-questions-by-topic-1.html">HL Questions by topic</a></li></ul></li></ul></li><li><a href="../19044/options--1.html">Options </a><ul class="level-1"><li><a href="../19503/option-a--1.html" class="father">Option A  </a><ul class="level-2"><li><a href="../19504/introduction-to-materials-science--1.html">Introduction to materials science </a></li><li><a href="../19519/metals-and-icp-spectroscopy-1.html">Metals and ICP spectroscopy</a></li><li><a href="../19541/catalysts--1.html">Catalysts </a></li><li><a href="../19580/liquid-crystals-1.html">Liquid crystals</a></li><li><a href="../19665/polymers--1.html">Polymers  </a></li><li><a href="../19672/nanotechnology-1.html">Nanotechnology</a></li><li><a href="../19843/environmental-impact-plastics-1.html">Environmental impact - plastics</a></li><li><a href="../19858/superconducting-metals-x-ray-crystallography--1.html">Superconducting metals & X-ray crystallography </a></li><li><a href="../19666/condensation-polymers-1.html">Condensation polymers</a></li><li><a href="../19916/environmental-impact-heavy-metals-1.html">Environmental impact - heavy metals</a></li></ul></li><li><a href="../19284/option-b--1.html" class="father">Option B </a><ul class="level-2"><li><a href="../19290/introduction-to-biochemistry--1.html">Introduction to biochemistry  </a></li><li><a href="../19287/proteins-enzymes--1.html">Proteins & enzymes </a></li><li><a href="../19291/lipids-1.html">Lipids</a></li><li><a href="../19299/carbohydrates--1.html">Carbohydrates </a></li><li><a href="../19305/vitamins--1.html">Vitamins   </a></li><li><a href="../19313/biochemistry-the-environment--1.html">Biochemistry & the environment </a></li><li><a href="../19336/proteins-enzymes-ahl--1.html">Proteins & enzymes (AHL)   </a></li><li><a href="../19347/nucleic-acids--1.html">Nucleic acids   </a></li><li><a href="../19361/biological-pigments--1.html">Biological pigments   </a></li><li><a href="../19366/stereochemistry-in-biomolecules-1.html">Stereochemistry in biomolecules</a></li></ul></li><li><a href="../19390/option-c--1.html" class="father">Option C </a><ul class="level-2"><li><a href="../19391/energy-sources-1.html">Energy sources</a></li><li><a href="../19407/fossil-fuels-1.html">Fossil fuels</a></li><li><a href="../19411/nuclear-fusion-nuclear-fission-reactions-1.html">Nuclear fusion & nuclear fission reactions</a></li><li><a href="../19429/solar-energy-1.html">Solar energy</a></li><li><a href="../19437/environmental-impact-global-warming-1.html">Environmental impact - global warming</a></li><li><a href="../19453/electrochemistry-rechargeable-batteries-fuel-cells-1.html">Electrochemistry, rechargeable batteries & fuel cells</a></li><li><a href="../19458/nuclear-fusion-fission-hl--1.html">Nuclear fusion & fission (HL)    </a></li><li><a href="../19470/photovoltaic-cells-and-dsscs-1.html">Photovoltaic cells and DSSCs</a></li></ul></li><li><a href="../19078/option-d-1.html" class="father">Option D</a><ul class="level-2"><li><a href="../19079/pharmaceutical-products-drug-action--1.html">Pharmaceutical products & drug action </a></li><li><a href="../19158/aspirin-penicillin--1.html">Aspirin & penicillin  </a></li><li><a href="../19174/opiates-1.html">Opiates</a></li><li><a href="../19184/ph-regulation-of-the-stomach-1.html">pH regulation of the stomach</a></li><li><a href="../19194/antiviral-medications--1.html">Antiviral medications </a></li><li><a href="../19211/environmental-impact-of-some-medications-1.html">Environmental impact of some medications</a></li><li><a href="../19254/taxol-a-chiral-auxiliary-case-study-1.html">Taxol - a chiral auxiliary case study</a></li><li><a href="../19258/nuclear-medicine--1.html">Nuclear medicine  </a></li><li><a href="../19273/drug-detection-analysis--1.html">Drug detection & analysis </a></li></ul></li></ul></li><li><a href="../16592/practical-scheme-of-work-ia--1.html">Practical scheme of work & IA </a><ul class="level-1"><li><a href="../16682/internal-assessment-1.html" class="father">Internal Assessment</a><ul class="level-2"><li><a href="../18892/scaffolding-the-investigation-1.html">&#039;Scaffolding&#039; the investigation</a></li><li><a href="../18896/timing-organisation--1.html">Timing & organisation </a></li><li><a href="../18905/choosing-the-research-question-1.html">Choosing the research question</a></li><li><a href="../18946/personal-engagement-1.html">Personal engagement</a></li><li><a href="../18950/exploration-1.html">Exploration</a></li><li><a href="../18957/analysis-1.html">Analysis</a></li><li><a href="../18965/evaluation-1.html">Evaluation</a></li><li><a href="../18966/communication-1.html">Communication</a></li><li><a href="../19882/internal-standardization-of-the-ia-1.html">Internal standardization of the IA</a></li><li><a href="../19901/submitting-the-samples-for-moderation-2.html">Submitting the samples for moderation</a></li><li><a href="../33754/ten-suggestions-for-ias-using-secondary-data-1.html">Ten suggestions for IAs using secondary data</a></li><li><a href="../37544/gaining-full-marks-for-a-databased-ia--1.html">Gaining full marks for a databased IA </a></li><li><a href="../19506/ia-example-marking-exercise--1.html">IA example & marking exercise </a></li><li><a href="../23929/genuine-examples-of-moderated-ia-reports-1.html">Genuine examples of moderated IA reports</a></li><li><a href="../25234/examples-of-teacher-marked-ia-reports--1.html">Examples of teacher-marked IA reports </a></li><li><a href="../37542/history-of-internal-assessment-1.html">History of Internal Assessment</a></li></ul></li><li><a href="../16598/mandatory-laboratory-components-1.html" class="father">Mandatory laboratory components</a><ul class="level-2"><li><a href="../16613/formula-of-magnesium-oxide--1.html">Formula of magnesium oxide </a></li><li><a href="../16612/determining-the-mr-of-an-unknown-gas-1.html">Determining the <i>M</i><sub>r</sub> of an unknown gas</a></li><li><a href="../16615/acid-base-titrations--1.html">Acid-base titrations </a></li><li><a href="../16616/a-green-acid-base-practical-1.html">A green acid-base practical</a></li><li><a href="../16617/analysis-of-aspirin-tablets-1.html">Analysis of aspirin tablets</a></li><li><a href="../16618/caco3-in-egg-shells-1.html">CaCO<sub>3</sub> in egg shells</a></li><li><a href="../16644/enthalpy-changes-1.html">Enthalpy changes</a></li><li><a href="../16631/reaction-rates-1.html">Reaction rates</a></li><li><a href="../16635/rate-dependent-factors-1.html">Rate-dependent factors</a></li><li><a href="../16636/determining-ea-for-a-reaction-1.html">Determining <i>E</i><sub>a</sub> for a reaction</a></li><li><a href="../16637/iodination-of-propanone-1.html">Iodination of propanone</a></li><li><a href="../18144/titrations-with-a-ph-meter-1.html">Titrations with a pH meter</a></li><li><a href="../18355/redox-titration-with-kmno4--1.html">Redox titration with KMnO<sub>4</sub> </a></li><li><a href="../16640/voltaic-cells-1.html">Voltaic cells</a></li><li><a href="../16659/3-d-molecular-modelling--1.html">3-D molecular modelling </a></li></ul></li><li><a href="../17168/other-good-practicals-1.html" class="father">Other good practicals</a><ul class="level-2"><li><a href="../17196/common-chemical-reactions-1.html">Common chemical reactions</a></li><li><a href="../227/elements-oxides-of-the-third-period--1.html">Elements & oxides of the third period </a></li><li><a href="../17239/the-halogens-1.html">The halogens</a></li><li><a href="../17162/boiling-points-of-mixtures-1.html">Boiling points of mixtures</a></li><li><a href="../17170/polarity-of-molecules-1.html">Polarity of molecules</a></li><li><a href="../18083/le-chateliers-principle--1.html">Le Chatelier&#039;s principle </a></li><li><a href="../19582/determining-kc-for-an-esterification-reaction-1.html">Determining <i>K</i><sub>c</sub> for an esterification reaction</a></li><li><a href="../18164/redox-reactions-of-vanadium--1.html">Redox reactions of vanadium </a></li><li><a href="../18351/chlorine-in-swimming-pools--1.html">Chlorine in swimming pools </a></li><li><a href="../18178/analysis-of-cuii-ions-in-solution--1.html">Analysis of Cu(II) ions in solution </a></li><li><a href="../18179/percentage-of-copper-in-brass-1.html">Percentage of copper in brass</a></li><li><a href="../18356/electrolytic-cells--1.html">Electrolytic cells </a></li><li><a href="../18598/reactions-of-organic-compounds-1.html">Reactions of organic compounds</a></li><li><a href="../18752/hydrolysis-of-halogenoalkanes-1.html">Hydrolysis of halogenoalkanes</a></li><li><a href="../18784/preparation-of-13-dinitrobenzene--1.html">Preparation of 1,3-dinitrobenzene </a></li><li><a href="../19022/determination-of-an-organic-structure-1.html">Determination of an organic structure</a></li><li><a href="../19887/preparation-of-nylon-66-1.html">Preparation of nylon 6,6</a></li><li><a href="../19343/determination-of-vitamin-c-content--1.html">Determination of vitamin C content </a></li><li><a href="../19342/hydrolysis-of-starch--1.html">Hydrolysis of starch </a></li><li><a href="../19159/preparation-purification-of-aspirin--1.html">Preparation & purification of aspirin </a></li></ul></li><li><a href="../18851/ict-in-practical-work-1.html" class="father">ICT in practical work</a><ul class="level-2"><li><a href="../18852/data-logging--1.html">Data logging </a></li><li><a href="../18853/software-for-graph-plotting--1.html">Software for graph plotting </a></li><li><a href="../18854/spreadsheets-for-data-processing--1.html">Spreadsheets for data processing </a></li><li><a href="../18855/databases-1.html">Databases</a></li><li><a href="../18856/computer-modelling-simulations--1.html">Computer modelling & simulations </a></li></ul></li><li><a href="../16594/group-4-project-1.html" class="father">Group 4 Project</a><ul class="level-2"><li><a href="../16595/practicalities-1.html">Practicalities</a></li><li><a href="../16596/reflective-statement--2.html">Reflective statement </a></li></ul></li><li><a href="../16666/a-new-laboratory-1.html">A new laboratory?</a></li></ul></li><li class="selected"><a href="../16284/exams-1.html">Exams</a><ul class="level-1"><li><a href="../16286/essential-facts-1.html" class="father">Essential Facts</a><ul class="level-2"><li><a href="../16287/objectives-command-terms-1.html">Objectives & command terms</a></li><li><a href="../16288/grade-descriptors-1.html">Grade descriptors</a></li><li><a href="../16289/grade-boundaries-1.html">Grade boundaries</a></li></ul></li><li><a href="../16302/paper-1-multiple-choice-1.html" class="father">Paper 1 (Multiple Choice)</a><ul class="level-2"><li><a href="../16303/advice-to-students-paper-1-1.html">Advice to students (Paper 1)</a></li><li><a href="../31515/practice-paper-1-exams-1.html">Practice Paper 1 exams</a></li></ul></li><li><a href="../16305/paper-2-1.html" class="father">Paper 2</a><ul class="level-2"><li><a href="../16306/advice-to-students-paper-2-1.html">Advice to students (Paper 2)</a></li><li><a href="../16307/areas-of-difficulty-1.html">Areas of difficulty</a></li></ul></li><li><a href="../16313/paper-3--1.html" class="father">Paper 3 </a><ul class="level-2"><li><a href="../16314/advice-to-students-paper-3-1.html">Advice to students (Paper 3)</a></li><li><a href="../16342/data-response-questions-1.html">Data response questions</a></li><li><a href="../20054/experimental-work-questions-1.html">Experimental work questions</a></li></ul></li><li class="selected"><a href="../16324/the-examination-process-1.html" class="father">The examination process</a><ul class="level-2"><li><a href="../16316/setting-the-exam-papers-1.html">Setting the exam papers</a></li><li><a href="../16317/predicted-grades-1.html">Predicted grades</a></li><li><a href="../16318/marking-the-papers-1.html">Marking the papers</a></li><li class="selected"><a href="commenting-on-the-exams-1.html">Commenting on the exams</a></li><li><a href="../16320/grade-awarding-1.html">Grade Awarding</a></li><li><a href="../16321/enquiry-upon-results-1.html">Enquiry upon results</a></li><li><a href="../16322/chief-examiners-report-1.html">Chief Examiner&#039;s report</a></li><li><a href="../16323/retaking-the-exam-1.html">Retaking the exam</a></li></ul></li><li><a href="../16325/faqs-1.html">FAQs</a></li></ul></li><li><a href="../3147/ib-core-1.html">IB Core</a><ul class="level-1"><li><a href="../3149/learner-profile-1.html">Learner Profile</a></li><li><a href="../21735/extended-essays--1.html" class="father">Extended Essays </a><ul class="level-2"><li><a href="../21736/overview--1.html">Overview </a></li><li><a href="../21780/responsibilities-1.html">Responsibilities</a></li><li><a href="../21790/resources-1.html">Resources</a></li><li><a href="../21800/research-1.html">Research</a></li><li><a href="../21804/writing-the-essay-1.html">Writing the essay</a></li><li><a href="../21810/assessment-1.html">Assessment</a></li><li><a href="../22434/summary-of-advice--1.html">Summary of advice </a></li><li><a href="../25272/faqs--1.html">FAQs </a></li></ul></li><li><a href="../307/theory-of-knowledge-tok-1.html" class="father">Theory of Knowledge (TOK)</a><ul class="level-2"><li><a href="../41171/the-12-tok-concepts-1.html">The 12 TOK concepts</a></li><li><a href="../3507/why-tok-chemistry-1.html">Why TOK & Chemistry?</a></li><li><a href="../3505/a-modern-paradigm-1.html">A modern paradigm</a></li></ul></li></ul></li><li><a href="../17783/fast-track-to-tests-questions-1.html">Fast track to tests & questions</a><ul class="level-1"><li><a href="../17784/sl-multiple-choice-tests-on-individual-topics-1.html">SL Multiple choice tests on individual topics</a></li><li><a href="../24351/sl-multiple-choice-quizzes-on-sub-topics-1.html">SL Multiple choice &#039;quizzes&#039; on sub-topics</a></li><li><a href="../31519/sl-practice-paper-1-exams-1.html">SL Practice Paper 1 exams</a></li><li><a href="../17786/sl-questions-on-each-sub-topic-1.html">SL Questions on each sub-topic</a></li><li><a href="../20431/sl-paper-3-section-a-questions-1.html">SL Paper 3 Section A questions</a></li><li><a href="../17792/sl-questions-on-the-options-1.html">SL Questions on the options</a></li><li><a href="../24897/sl-quizzes-on-option-sub-topics--1.html">SL Quizzes on option sub-topics </a></li><li><a href="../17785/hl-multiple-choice-tests-on-individual-topics-1.html">HL Multiple choice tests on individual topics</a></li><li><a href="../24352/hl-multiple-choice-quizzes-on-sub-topics-1.html">HL Multiple choice &#039;quizzes&#039; on sub-topics</a></li><li><a href="../31520/hl-practice-paper-1-exams--1.html">HL Practice Paper 1 exams </a></li><li><a href="../17787/hl-questions-on-each-sub-topic--1.html">HL Questions on each sub-topic </a></li><li><a href="../20428/hl-paper-3-section-a-questions-1.html">HL Paper 3 Section A questions</a></li><li><a href="../17793/hl-questions-on-the-options-1.html">HL Questions on the options</a></li><li><a href="../24973/hl-quizzes-on-option-sub-topics-1.html">HL Quizzes on option sub-topics</a></li><li><a href="../41573/printable-versions-of-written-tasks--1.html">Printable versions of written tasks </a></li></ul></li><li><a href="../41465/complete-course-for-students--2.html">Complete course for students </a><ul class="level-1"><li><a href="../27988/full-coverage-of-each-topic-and-sub-topic-2.html" class="father">Full coverage of each topic and sub-topic</a><ul class="level-2"><li><a href="../27959/topic-1-stoichiometric-relationships-1.html">Topic 1 : Stoichiometric relationships</a></li><li><a href="../27960/topics-2-12-atomic-structure-1.html">Topics 2 & 12 : Atomic structure</a></li><li><a href="../27965/topics-3-13-periodicity-1.html">Topics 3 & 13 : Periodicity</a></li><li><a href="../27971/topics-4-14-chemical-bonding-structure-1.html">Topics 4 & 14 : Chemical bonding & structure</a></li><li><a href="../27987/topics-5-15-energeticsthermochemistry-1.html">Topics 5 & 15 : Energetics/thermochemistry</a></li><li><a href="../27995/topics-6-16-chemical-kinetics-1.html">Topics 6 & 16 : Chemical kinetics</a></li><li><a href="../28001/topics-7-17-equilibrium--1.html">Topics 7 & 17 : Equilibrium </a></li><li><a href="../28017/topics-8-18-acids-and-bases--1.html">Topics 8 & 18 : Acids and bases </a></li><li><a href="../28031/topics-9-19-redox-process-1.html">Topics 9 & 19 : Redox process</a></li><li><a href="../28061/topics-10-20-organic-chemistry-1.html">Topics 10 & 20 : Organic chemistry</a></li><li><a href="../28038/topics-11-21-measurement-data-processing-analysis-1.html">Topics 11 & 21 : Measurement, data processing & analysis</a></li><li><a href="../28074/option-a-materials--1.html">Option A : Materials </a></li><li><a href="../28087/option-b-biochemistry-1.html">Option B : Biochemistry</a></li><li><a href="../28098/option-c-energy--1.html">Option C : Energy </a></li><li><a href="../28109/option-d-medicinal-chemistry-1.html">Option D : Medicinal chemistry</a></li></ul></li><li><a href="../41553/practical-work-including-ia-group-4-project--1.html" class="father">Practical work (including IA & Group 4 Project) </a><ul class="level-2"><li><a href="../41528/internal-assessment-1.html">Internal Assessment</a></li><li><a href="../41657/group-4-project-1.html">Group 4 Project</a></li></ul></li><li><a href="../41387/approaches-to-learning--1.html" class="father">Approaches to learning </a><ul class="level-2"><li><a href="../41380/thinking-skills-1.html">Thinking skills</a></li><li><a href="../41383/communication-skills-1.html">Communication skills</a></li><li><a href="../41384/social-skills--1.html">Social skills </a></li><li><a href="../41385/self-management-skills-1.html">Self-management skills</a></li><li><a href="../41386/research-skills-1.html">Research skills</a></li><li><a href="../41382/reflection-skills--1.html">Reflection skills </a></li></ul></li><li><a href="../41488/the-nature-of-science-1.html" class="father">The Nature of Science</a><ul class="level-2"><li><a href="../41489/key-terms-concepts--1.html">Key terms & concepts </a></li><li><a href="../41492/how-the-elements-were-named--1.html">How the elements were named </a></li><li><a href="../41490/nos-critical-thinking-1.html">NOS & Critical Thinking</a></li><li><a href="../41493/the-culture-of-chemistry--1.html">The Culture of Chemistry </a></li><li><a href="../41494/nature-of-science-questions--1.html">Nature of Science questions </a></li></ul></li><li><a href="../41401/external-assessment-exams-1.html" class="father">External assessment (Exams)</a><ul class="level-2"><li><a href="../41403/essential-facts--1.html">Essential Facts </a></li><li><a href="../41409/paper-1-multiple-choice--1.html">Paper 1 (Multiple Choice) </a></li><li><a href="../41417/paper-2--1.html">Paper 2 </a></li><li><a href="../41431/paper-3--1.html">Paper 3  </a></li></ul></li><li><a href="../41662/extended-essay--1.html" class="father">Extended Essay </a><ul class="level-2"><li><a href="../41685/preparation-1.html">Preparation</a></li><li><a href="../41686/researching--1.html">Researching </a></li><li><a href="../42075/writing-the-essay-1.html">Writing the essay</a></li><li><a href="../41687/assessment-1.html">Assessment</a></li></ul></li></ul></li></ul></nav>
			</div>
		</div>
	</div>

    <nav id="nav-menu-search" style="display: none;">
        <div class="layout-wrapper">
            <form class="form-inline" role="search" method="get" action="chemistry/search">
    <input id="nav-search" name="s" type="search" placeholder="Search Chemistry..." value="">
    <button class="btn btn-sm btn-primary" type="submit">
        Search
    </button>
    <a href="#" class="toggle-menu-search" title="Close">
        <i class="fa fa-lg fa-times gray"></i>
    </a>
</form>

        </div>
    </nav>

	<div class="layout-wrapper">
		<div id="container" class="container-fluid">
			<div id="content">
				<div class="row-fluid">
					<div id="left-column" class="span3"><div class="dropdown" id="userbox"><a class="dropdown-toggle btn" data-toggle="dropdown" onclick="return false;"><img src="../../../img/user/t/IBRR.jpg" style="width: 16px; height: 16px; margin: -2px 0 0 0;">&nbsp;&nbsp;IB Docs (2) Team&nbsp;&nbsp;<i class="fa fa-caret-down gray"></i></a><ul class="dropdown-menu" style="min-width: 200px"><li><a href="https://www.thinkib.net/chemistry" class="" title=""><i class="fa fa-globe fixwidth colored"></i>IBDP Chemistry</a></li><li class="divider"></li><li><a href="https://www.thinkib.net/chemistry/user" class="" title="Check &amp; modify your profile"><i class="fa fa-user fixwidth colored"></i>My profile</a></li><li><a href="https://www.thinkib.net/chemistry/sitemap" class="" title="Get an overview of the site"><i class="fa fa-sitemap colored fixwidth colored"></i>Sitemap</a></li><li><a href="chemistry/std-access" class="" title="Set up/Manage student access"><i class="fa fa-group fixwidth colored"></i>Student access</a></li><li><a href="https://www.thinkib.net/chemistry/user/teacher-accounts" class="" title="Manage teacher accounts"><i class="fa fa-cogs fixwidth colored"></i>Teacher accounts</a></li><li><a href="https://www.thinkib.net/chemistry/user/bookmarks" class="" title="Manage your bookmarked pages"><i class="fa fa-star fixwidth colored"></i>My favorites</a></li><li><a href="https://www.thinkib.net/chemistry/user/messages" class="" title="Read your messages"><i class="fa fa-envelope-o fixwidth colored"></i>Messages</a></li><li><a href="/help/thinkib" class="pop-up-help" title="Help"><i class="fa fa-info-circle fixwidth colored"></i>Help</a></li><li><a href="https://www.thinkib.net/subscribe/" class="" title="Add / Renew subjects"><i class="fa fa-refresh fixwidth colored"></i>Renew</a></li><li class="divider"></li><li><a href="chemistry?logout=1"><i class="fa fa-power-off fixwidth colored"></i>Log out</a></li></ul></div><div id="std-teacher-only" style="padding-bottom: 10px;"><div style="display:flex;align-items:center"><img src="../../../img/icons/teacher.svg" style="margin: 0px;width:32px;height:auto;"><span style="color: #224466; font-weight: bold; margin-left: 5px;">Teacher only page</span></div></div><nav id="sidemenu" class="side-nav"><div class="header"><span style="color: #fff;"><a href="../16284/exams-1.html">Exams</a></span><span id="sidetreecontrol"><a title="Collapse all" rel="collapse" href="#"><i class="fa fa-minus-circle"></i></a>&nbsp;<a title="Expand all" rel="expand" href="#"><i class="fa fa-plus-circle"></i></a></span></div><ul class="level-0 always-expanded"><li class=" parent" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16286/essential-facts-1.html" title="Essential Facts">Essential Facts</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16287/objectives-command-terms-1.html" title="Objectives & command terms">Objectives & command terms</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16288/grade-descriptors-1.html" title="Grade descriptors">Grade descriptors</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16289/grade-boundaries-1.html" title="Grade boundaries">Grade boundaries</a></li></ul><li class=" parent" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16302/paper-1-multiple-choice-1.html" title="Paper 1 (Multiple Choice)">Paper 1 (Multiple Choice)</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16303/advice-to-students-paper-1-1.html" title="Advice to students (Paper 1)">Advice to students (Paper 1)</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../31515/practice-paper-1-exams-1.html" title="Practice Paper 1 exams">Practice Paper 1 exams</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31516/sl-practice-paper-1-1.html" title="SL Practice Paper 1 (1)">SL Practice Paper 1 (1)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31677/sl-practice-paper-1-2-.html" title="SL Practice Paper 1 (2) ">SL Practice Paper 1 (2) </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31806/sl-practice-paper-1-3-.html" title="SL Practice Paper 1 (3) ">SL Practice Paper 1 (3) </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31518/hl-practice-paper-1-1-.html" title="HL Practice Paper 1 (1) ">HL Practice Paper 1 (1) </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31696/hl-practice-paper-1-2-.html" title="HL Practice Paper 1 (2)  ">HL Practice Paper 1 (2)  </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../32111/hl-practice-paper-1-3-.html" title="HL Practice Paper 1 (3)  ">HL Practice Paper 1 (3)  </a></li></ul></ul><li class=" parent" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16305/paper-2-1.html" title="Paper 2">Paper 2</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16306/advice-to-students-paper-2-1.html" title="Advice to students (Paper 2)">Advice to students (Paper 2)</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16307/areas-of-difficulty-1.html" title="Areas of difficulty">Areas of difficulty</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../32586/misuse-of-formulas.html" title="Misuse of formulas">Misuse of formulas</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16309/ie-graphs.html" title="IE graph(s)">IE graph(s)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16311/vsepr.html" title="VSEPR">VSEPR</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31240/understanding-and-using-g-.html" title="Understanding and using ΔG ">Understanding and using Δ<em>G </em></a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../32566/manipulating-equilibrium-constants-.html" title="Manipulating equilibrium constants ">Manipulating equilibrium constants </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31229/understanding-the-activity-series.html" title="Understanding the activity series">Understanding the activity series</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16310/using-electrode-potentials.html" title="Using electrode potentials">Using electrode potentials</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16308/curly-arrows.html" title="&#039;Curly arrows&#039;">&#039;Curly arrows&#039;</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../33687/understanding-hybridization.html" title="Understanding hybridization">Understanding hybridization</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../32529/factors-affecting-the-rate-of-nucleophilic-substitution-reaction.html" title="Factors affecting the rate of nucleophilic substitution reactions">Factors affecting the rate of nucleophilic substitution reactions</a></li></ul></ul><li class=" parent" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16313/paper-3--1.html" title="Paper 3 ">Paper 3 </a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16314/advice-to-students-paper-3-1.html" title="Advice to students (Paper 3)">Advice to students (Paper 3)</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16342/data-response-questions-1.html" title="Data response questions">Data response questions</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16339/data-response-example-1.html" title="Data response Example 1">Data response Example 1</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16340/data-response-example-2.html" title="Data response Example 2">Data response Example 2</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16341/data-response-example-3.html" title="Data response Example 3">Data response Example 3</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17292/data-response-example-4.html" title="Data response Example 4">Data response Example 4</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20333/data-response-example-5.html" title="Data response Example 5">Data response Example 5</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20334/data-response-example-6-.html" title="Data response Example 6 ">Data response Example 6 </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20367/data-response-example-7-.html" title="Data response Example 7 ">Data response Example 7 </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20381/data-response-example-8-.html" title="Data response Example 8 ">Data response Example 8 </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20461/data-response-example-9-.html" title="Data response Example 9  ">Data response Example 9  </a></li></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../20054/experimental-work-questions-1.html" title="Experimental work questions">Experimental work questions</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20033/experimental-work-question-1.html" title="Experimental work Question 1">Experimental work Question 1</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20034/experimental-work-question-2.html" title="Experimental work Question 2">Experimental work Question 2</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20042/experimental-work-question-3.html" title="Experimental work Question 3">Experimental work Question 3</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20065/experimental-work-question-4.html" title="Experimental work Question 4">Experimental work Question 4</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20073/experimental-work-question-5.html" title="Experimental work Question 5">Experimental work Question 5</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20070/experimental-work-question-6.html" title="Experimental work Question 6">Experimental work Question 6</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20076/experimental-work-question-7.html" title="Experimental work Question 7">Experimental work Question 7</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20064/experimental-work-question-8.html" title="Experimental work Question 8">Experimental work Question 8</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20056/experimental-work-question-9.html" title="Experimental work Question 9">Experimental work Question 9</a></li></ul></ul><li class="ancestor parent" style="padding-left: 0px"><i class="expander fa fa-caret-right fa-rotate-90"></i><a href="../16324/the-examination-process-1.html" title="The examination process">The examination process</a></li><ul class="level-1 expanded"><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16316/setting-the-exam-papers-1.html" title="Setting the exam papers">Setting the exam papers</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16317/predicted-grades-1.html" title="Predicted grades">Predicted grades</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16318/marking-the-papers-1.html" title="Marking the papers">Marking the papers</a></li><li class="current" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="commenting-on-the-exams-1.html" title="Commenting on the exams">Commenting on the exams</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16320/grade-awarding-1.html" title="Grade Awarding">Grade Awarding</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16321/enquiry-upon-results-1.html" title="Enquiry upon results">Enquiry upon results</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16322/chief-examiners-report-1.html" title="Chief Examiner&#039;s report">Chief Examiner&#039;s report</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16323/retaking-the-exam-1.html" title="Retaking the exam">Retaking the exam</a></li></ul><li class="" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16325/faqs-1.html" title="FAQs">FAQs</a></li></ul></nav></div><!-- /#left-column-->
					<div id="main-column" class="span9"><article id="main-article"><a id="exit-fs" title="Exit presentation mode" href="#" onclick="return false;"><i class="fa fa-arrows-alt"></i></a><ul class="page-actions no-print stacked nav nav-list visible-desktop"><li><a class="presentation" href="#" onclick="return false;"><i class="fa fa-desktop"></i><span>Presentation mode</span></a></li><li><a class="print-section-blog" href="#" onclick="return false;"><i class="fa fa-print"></i><span>Print this page</span></a></li><li><a class="page-bookmarker stacked" data-ticket="IB Docs (2) Team" data-pid="16319" href="#" onclick="return false;"><i class="fa fa-star"></i><span>Favourite</span></a><textarea data-ticket="IB Docs (2) Team" data-pid="16319" id="editor" class="favcomms hidden" placeholder="Your personal notes..."></textarea></li><li><a class="personal-notes" href="#" onclick="return false;"><i class="fa fa-file-text"></i><span>Personal notes</span></a></li><li><a class="" data-toggle="modal" href="#modal-feedback" onclick="return false;"><i class="fa fa-envelope-o"></i><span>Feedback</span></a></li><li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" data-target="#" href="#"><i class="fa fa-share-alt"></i><span>Share this page</span></a><ul class="dropdown-menu" role="menu"><li><a class="" target="_blank" title="Share on Twitter" href="https://twitter.com/share?text=%22Commenting+on+the+exams%22+-+via+%40InThinker+%23chemistry%0A&url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-twitter-square"></i><span>Twitter</span></a></li><li><a class="" target="_blank" title="Share on Facebook" href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams&t=Commenting+on+the+exams"><i class="fa fa-facebook-square"></i><span>Facebook</span></a></li><li><a class="" href="http://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-linkedin-square"></i><span>LinkedIn</span></a></li><li><a class="" href="https://plus.google.com/share?url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-google-plus-square"></i><span>Google +</span></a></li><li><a class="" href="mailto:?subject=Commenting on the exams&body=All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome...%0Ahttps%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-envelope"></i><span>Email</span></a></li></ul></li><li><a class="" href="chemistry/teaching-materials"><i class="fa fa-puzzle-piece colored"></i><span>Teaching materials</span></a></li></ul><div class="page-actions no-print navbar inline hidden-desktop"><div class="navbar-inner"><ul class="nav"><li><a class="presentation" href="#" onclick="return false;"><i class="fa fa-desktop"></i></a></li><li><a class="print-section-blog" href="#" onclick="return false;"><i class="fa fa-print"></i></a></li><li><a class="page-bookmarker" data-ticket="IB Docs (2) Team" data-pid="16319" href="#" onclick="return false;"><i class="fa fa-star"></i></a></li><li><a class="personal-notes" href="#" onclick="return false;"><i class="fa fa-file-text"></i></a></li><li><a class="" data-toggle="modal" href="#modal-feedback" onclick="return false;"><i class="fa fa-envelope-o"></i></a></li><li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" data-target="#" href="#"><i class="fa fa-share-alt"></i></a><ul class="dropdown-menu" role="menu"><li><a class="" target="_blank" title="Share on Twitter" href="https://twitter.com/share?text=%22Commenting+on+the+exams%22+-+via+%40InThinker+%23chemistry%0A&url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-twitter-square"></i><span>Twitter</span></a></li><li><a class="" target="_blank" title="Share on Facebook" href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams&t=Commenting+on+the+exams"><i class="fa fa-facebook-square"></i><span>Facebook</span></a></li><li><a class="" href="http://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-linkedin-square"></i><span>LinkedIn</span></a></li><li><a class="" href="https://plus.google.com/share?url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-google-plus-square"></i><span>Google +</span></a></li><li><a class="" href="mailto:?subject=Commenting on the exams&body=All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome...%0Ahttps%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-envelope"></i><span>Email</span></a></li></ul></li><li><a class="" href="chemistry/teaching-materials"><i class="fa fa-puzzle-piece colored"></i></a></li></ul></div></div><h1 class="section-title">Commenting on the exams</h1><ul class="breadcrumb"><li><a title="Home" href="https://www.thinkib.net/chemistry"><i class="fa fa-home"></i></a><span class="divider"><i class="fa fa-chevron-right"></i></span></li><li><a title="Go to: Exams" href="../16284/exams-1.html">Exams</a><span class="divider"><i class="fa fa-chevron-right"></i></span></li><li><a title="Go to: The examination process" href="../16324/the-examination-process-1.html">The examination process</a><span class="divider"><i class="fa fa-chevron-right"></i></span></li><li><span>Commenting on the exams</span></li></ul><div id="std-sidebox-task-added-msg"></div><div id="modal-feedback" class="modal hide fade text-left" tabindex="-1" role="dialog" aria-labelledby="log-in form" aria-hidden="true">
	<div class="modal-header">
		<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
		<h3>Commenting on the exams: Feedback</h3>
	</div>
	<div class="modal-body">
		
		<form method="post" id="feedback-form">
			<div class="row-fluid">
				<div class="span12" style="margin: 12px 0">
					<p>
						Which of the following best describes your feedback?
					</p>
					<label class="radio" style="float: left; margin-right: 12px">
						<input type="radio" checked="checked" value="useful" name="feedback-type">
						Recommend
					</label><label class="radio" style="float: left; margin-right: 12px">
						<input type="radio" value="error" name="feedback-type">
						Report a problem
					</label><label class="radio" style="float: left; margin-right: 12px">
						<input type="radio" value="improve" name="feedback-type">
						Suggest an improvement
					</label><label class="radio" style="float: left; margin-right: 12px">
						<input type="radio" value="other" name="feedback-type">
						Other
					</label>
				</div>
				
			</div>
			<div class="row-fluid">
				<label>Comments:</label>
				<div class="row-fluid">
					<textarea class="span12" name="feedback-comment" placeholder="Your feedback... (optional)"></textarea>
				</div>
			</div>
			
			<input type="hidden" name="feedback-submited" value="1">
		</form>
	</div>
	<div class="modal-footer">
		<button class="btn btn-large" type="button" data-dismiss="modal" aria-hidden="true">
			<i class="fa fa-remove"></i>
			Cancel
		</button>
		<button class="btn pull-right" id="submit-feedback" onclick="javascript:$('#feedback-form').submit();return false;">
			<i class="fa fa-check"></i>
			Submit
		</button>
	</div>
</div><section id="main-content"><div class="blueBg"><h1>Basic facts about the Teacher Feedback form&nbsp;</h1><p>All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome of that meeting. The comments should be made officially on the Teacher Feedback form (previously known as the G2 form). In the past this was filled in mIB Docs (2) Teamally and sent to IBCA. Now the form can be downloaded from My IB and can be sent digitally to the IB. The written comments must be received by IBCA within 28 days following the end of the examination.</p><hr class="hidden"></div><hr class="hidden"><div class="greenBg"><h1>Completing the Teacher Feedback form</h1><p>The form asks some standard questions such as whether you considered the paper to be easier, harder or of about the same standard as last year. It also provides space for you to comment on individual questions. This is important particularly for the multiple choice questions. Some years ago on the old syllabus there was a question that basically asked how many peaks there would be in the <sup>1</sup>H NMR spectrum of benzene. The candidates could choose answers of 1, 2, 6 and another obviously wrong answer such as 78. The answer expected by the IB was 1. Benzene of course does give one peak but it could be argued that the spectrum would actually show two peaks as students are taught about chemical shifts and there needs to be a peak due to the TMS reference to be present for the shift&nbsp;to be measured. Because of the comments from by teachers it was agreed at the Grade Award meeting that both answers 1 and 2 would be accepted. (Another two examples of this can be found in my <a href="chemistry/blog-post/8944/multiple-choice-answers.htm">blog on Multiple Choice Answers</a>). It is also important to state whether you think something has been asked that is not on the syllabus. If this is found to be true then if it is a multiple choice question it can be discarded.&nbsp;&nbsp;</p><p>It is worth doing two things before you complete the form. Talk to your students immediately after they have done&nbsp;each examination paper. They will tell you of anything they found particularly difficult or unusual and give you their overall impression of the papers. This can alert you to any particular problem areas. Then after 24 hours have passed you can obtain the examination papers from the IB coordinator in your school. Set aside some quiet time&nbsp;and do the papers as if you were a student. You will then get a good grasp of any areas you feel are worth commenting on. If there is more than one chemistry teacher in your school discuss the papers with your colleagues and submit a joint feedback form. There is one other way to spot potential problem areas. Many teachers air their views on the various chemistry discussions forums. They should not discuss anything until at least 24 hours after the examination has finished for obvious reasons (there may be students in other countries who have not yet started the exam). Because of this teachers are not actually allowed access to the papers until 24 hours have elapsed from the time the examination finished. When you read other teacher&rsquo;s comments check that they are referring to the papers in the same time zone as the exam taken by your students.&nbsp;&nbsp;</p><p>Remember though that the IB is an international exam. Different cultures will have different views. Some years ago I was at Grade Awarding and we saw the following feedback comments which referred to the same examination paper.</p><p><img alt="" class="left" height="327" src="../../../ib/chemistry/images/Exams/G2 organic1.jpg" style="width: 331px; height: 234px" width="448"><img alt="" class="right" height="264" src="../../../ib/chemistry/images/Exams/G2 organic2.jpg" style="width: 320px; height: 224px" width="448"></p><p class="MsoNormal" style="margin: 0cm 0cm 0pt"><span style="mso-spacerun: yes">&nbsp;</span></p><p class="MsoNormal" style="margin: 0cm 0cm 0pt"></p><p>After reading these&nbsp;we decided that we had got the balance about right!</p><hr class="hidden"></div></section></article><section id="media-extras"><div class="page-actions no-print navbar inline hidden-desktop"><div class="navbar-inner"><ul class="nav"><li><a class="presentation" href="#" onclick="return false;"><i class="fa fa-desktop"></i></a></li><li><a class="print-section-blog" href="#" onclick="return false;"><i class="fa fa-print"></i></a></li><li><a class="page-bookmarker" data-ticket="IB Docs (2) Team" data-pid="16319" href="#" onclick="return false;"><i class="fa fa-star"></i></a></li><li><a class="personal-notes" href="#" onclick="return false;"><i class="fa fa-file-text"></i></a></li><li><a class="" data-toggle="modal" href="#modal-feedback" onclick="return false;"><i class="fa fa-envelope-o"></i></a></li><li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" data-target="#" href="#"><i class="fa fa-share-alt"></i></a><ul class="dropdown-menu" role="menu"><li><a class="" target="_blank" title="Share on Twitter" href="https://twitter.com/share?text=%22Commenting+on+the+exams%22+-+via+%40InThinker+%23chemistry%0A&url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-twitter-square"></i><span>Twitter</span></a></li><li><a class="" target="_blank" title="Share on Facebook" href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams&t=Commenting+on+the+exams"><i class="fa fa-facebook-square"></i><span>Facebook</span></a></li><li><a class="" href="http://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-linkedin-square"></i><span>LinkedIn</span></a></li><li><a class="" href="https://plus.google.com/share?url=https%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-google-plus-square"></i><span>Google +</span></a></li><li><a class="" href="mailto:?subject=Commenting on the exams&body=All teachers are actively encouraged to comment on each of the three papers at both SL and HL. This is not an empty exercise as all the comments are considered at the Grade Award Meeting and can actively influence the outcome...%0Ahttps%3A%2F%2Fwww.thinkib.net%2Fchemistry%2Fpage%2F16319%2Fcommenting-on-the-exams"><i class="fa fa-envelope"></i><span>Email</span></a></li></ul></li><li><a class="" href="chemistry/teaching-materials"><i class="fa fa-puzzle-piece colored"></i></a></li></ul></div></div><div style="border-top: solid 1px #eee;border-bottom: solid 1px #eee;padding: 4px 0 4px 0;line-height: 1em;color: #666;font-size: .8em"><small><em>All materials on this website are for the exclusive use of teachers and students at subscribing schools for the period of their subscription. Any unauthorised copying or posting of materials on other websites is an infringement of our copyright and could result in your account being blocked and legal action being taken against you.</em></small></div></section><section id="comments"></section></div><!-- /#main-column -->
				</div>
			</div><!-- /#content -->
		</div>
	</div>

    <div id="footer">
    <div class="wmap">
        <div class="layout-wrapper">
            <p>
                &copy; <script>document.write(new Date().getFullYear())</script> <em>InThinking / IB Documents (2) Team | Version: 31.01.2023</em>
                &nbsp;| &nbsp;
                <a target="_self" href="/subscribe/about-us">
                    About us
                </a>
                &nbsp;|&nbsp;
                 <a target="_self" href="/subscribe/legal">
                    Legal
                </a>
                &nbsp;|&nbsp;
                <a target="_self" href="/subscribe/contact">
                    Contact
                </a>
            </p>
            <p>
                <a class="social" target="_blank" href="https://twitter.com/inthinker">
                    <img src="../../../social/twitter-square-1.svg"> Twitter
                </a>
                <a class="social" target="_blank" href="https://www.facebook.com/inthinking.net">
                    <img src="../../../social/facebook-square-1.svg"> Facebook
                </a>
                <a class="social" target="_blank" href="https://www.linkedin.com/company/9s4we1">
                    <img src="../../../social/linkedin-square-1.svg"> LinkedIn
                </a>
            </p>
        </div>
    </div>
</div>
<input id="tzoffset" type="hidden" value="-36000"><div id="modal-session-expired" class="modal fade" tabindex="-1" role="dialog" data-backdrop="static" data-keyboard="false">
    <div class="modal-dialog" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <h3 style="margin-top: 0">Your session has expired</h3>
            </div>
            <div class="modal-body" style="padding: 10px;">
                <p>You will have to reload and log in again.</p>
            </div>
            <div class="modal-footer">
                <a id="session-expired" class="btn btn-danger pull-right" href="#">
                    <i class="fa fa-refresh"></i>&nbsp;&nbsp;Reload
                </a>
            </div>
        </div>
    </div>
</div>

	<!-- Loading scripts at the end of the body means faster page loading -->
	<script src="../../../js/jquery-1.10.2.min-1.js"></script>
	<script src="../../../js/bootstrap.min-1.js"></script>
	<script type="text/javascript" src="../../../js/jq-fancybox/jquery.fancybox.pack-1.js"></script>
	<script>var pageId = 16319;</script><script src="../../../js/autosize.min-1.js" media="screen"></script><script src="../../../js/user/section-faves.min-1.js?v=202110111730"></script><script type="text/javascript" src="../../../assets/build/app-1.js?v=202204141130"></script><script type="text/javascript" src="../../../assets/js/ckeditor5-utils.min-1.js?v=20211202"></script><script type="text/javascript" src="../../../js/tib-fullscreen/tib-fullscreen.min-1.js?v=202109221648"></script><script src="../../../js/sidemenu/sidemenu.min-1.js?v=202011301145"></script><script src="../../../js/header-circle.min-1.js?v=20220113"></script><script src="../../../js/password-toggler.min-1.js?v=20220929"></script><script type="text/javascript" src="../../../js/cookies.min-1.js"></script>
<script type="text/javascript">
// The cookies alert
if (! readCookie("displayCookieConsent") && ! readCookie("y") ) {
    var cookieMSG = "We use cookies. By continuing to use this website you are giving consent to cookies being used.";
    setTimeout(function() {
        $.ajax({
            cache: true,
            url: "js/cookiechoices.js",
            dataType: "script",
            success: function () {
                cookieChoices.showCookieConsentBar(cookieMSG, 'close', 'Read more', "chemistry/legal#cookies");
            }
        });
    }, 2000);
}
</script><script>var sAJAX='/pages/activity/user-stats-page.php?t=IB Docs (2) Team&x=9380';var sData='0ebg+I>F/4F[IxZ4hvT)hIn82Oc2UjpCqiT2UMWi]MWuIxZ4oiQ)qNu8hNuOUNZsUI>FqtQc0vw)2e/6/OnQ+|>9oNw1o[/z/[/6/|Lco|Te+NSahNk[54]6/Obc2iZQ2|ncIj>u2vr[5[bg+NLc/[g[2|TMojTe+iTahNk[5[/Sn4]S5tbZ';var loopSecs = 30;var lsKey = 'b86b9243a3447252818a5a79a0b25828';</script><script src="../../../js/user/user-stats-page.min-1.js?v=202102101800"></script><script>var sessionUpdateSecs = 600;</script><script type="text/javascript" src="../../../js/session-updater-1.js?v=20200831"></script>
	<script type="text/javascript">
		$(document).ready(function(){
			function padLeft(str,max){return str.length<max?padLeft("0"+str,max):str}function padRight(str,max){return str.length<max?padRight(str+"0",max):str}$("body").on("click",'a[href="#"], a.fancybox-nav, a[data-toggle="tab"], a[data-toggle="dropdown"], a[data-toggle="collapse"], a[data-toggle="modal"]',(function(e){e.preventDefault()}));var topmenuOffset=0,topmenuHeight=0;function fixDiv(t,h){$(window).scrollTop()<topmenuOffset||$("#topmenu ul.level-1").is(":visible")?($("#topmenu").css({position:"",width:""}),$("#topmenu").removeClass("fixed-top"),$("body").css({"padding-top":"0"})):($("#topmenu").css({position:"fixed",top:"0",width:$("#topmenu").width()+"px"}),$("#topmenu").addClass("fixed-top"),$("body").css({"padding-top":topmenuHeight+"px"}))}function fixSearchNav(){var searchMenuTop=topmenuOffset+topmenuHeight,searchMenuH=$("#nav-menu-search").is(":visible")?$("#nav-menu-search").outerHeight():0;$(window).scrollTop()>searchMenuTop-topmenuHeight?($("#nav-menu-search").css({position:"fixed",top:topmenuHeight+"px",left:"0",right:"0"}),$("#nav-menu-search").addClass("fixed-top"),$("body").css("padding-top",topmenuHeight+searchMenuH+"px")):($("#nav-menu-search").css({position:""}),$("#nav-menu-search").removeClass("fixed-top"),$("body").css("padding-top","0"))}$("#topmenu").length&&(topmenuOffset=$("#topmenu").offset().top,topmenuHeight=$("#topmenu").outerHeight(),fixDiv(),$(window).scroll((function(){fixDiv(),fixSearchNav()}))),$("a.toggle-menu-search").on("click",(function(e){e.preventDefault(),$("#nav-menu-search").slideToggle("fast",(function(){$(this).find('input[name="s"]').focus()}))}));var menuH=$("#topmenu").height(),itemH=$("#topmenu > nav > ul > li").height();function fancyScrollTo(id){$("html, body").animate({scrollTop:$("#"+id).offset().top-300},300)}function printSectionBlog(){var w=$(window).width()/2,h,windowSettings="height="+($(window).height()-100)+", width="+w+", left=0, top=0, resizable=no, ";windowSettings+="scrollbars=yes, toolbar=no, menubar=no, location=no, ",windowSettings+="directories=no, status=yes";var myWindow=window.open("","Page printer",windowSettings),containerHtml=["<html>","<head>","<title>Page printer</title>",'<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/style.min.css?v=202211152130">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+"/css/style"+SITE_TAG+'.min.css?v=202104061357">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/snippets.min.css?v=202210181500">','<link rel="stylesheet" type="text/css" href="'+window.location.origin+'/css/article.min.css?v=202210181500">',"</head>","<body>",$("section#main-content").html().replace(/<span\sclass="MJX_Assistive_MathML".*?<\/span>/g,""),"</body>","</html>"].join("");containerHtml=containerHtml.replace(/src="files\//gi,'src="'+window.location.origin+"/files/"),myWindow.document.write(containerHtml),myWindow.document.close(),myWindow.focus(),setTimeout((function(){$.when(myWindow.print()).then(myWindow.close())}),1e3)}function PopupPrint(target){window.print()}$("#topmenu > nav > ul > li").each((function(){if(menuH>itemH&&$(this).position().top<1){var i=itemH+1;$(this).find("ul:first").css("margin-top","-"+i+"px")}})),$("#topmenu > nav > ul > li").on("mouseenter mouseleave",(function(e){var submenu=$("ul:first",this),submenuW=submenu.width();$(this).offset().left+submenuW>$(window).width()&&(submenu.css("right","0"),submenu.find("ul").each((function(){if(!$(this).hasClass("fixed")){var l=$(this).width()+submenuW;$(this).css("margin-left","-"+l+"px"),$(this).addClass("fixed")}})))})),$("a.showhider").click((function(e){e.preventDefault();var box="#"+$(this).attr("rel"),show='<i class="fa fa-eye"></i>',hide='<i class="fa fa-eye-slash"></i>';$(box).slideToggle("fast"),$(this).html($(this).html()==show?hide:show),$(this).attr("title","Show"==$(this).attr("title")?"Hide":"Show")})),$("a.scroll-to").click((function(e){e.preventDefault();var n=$("#"+$(this).data("target")).offset().top-70;$("html, body").animate({scrollTop:n},300)})),$("a.print-section-blog").click((function(e){e.preventDefault(),printSectionBlog()})),$(".print-button").click((function(e){var target;e.preventDefault(),PopupPrint("#"+$(this).data("target-id"))})),$(".alert.alert-success").delay(6e3).hide("fast",fixDiv());var fancyParent=1==$("body").find($("#main-article")).length?"#main-article":"body",fancyOptions={loop:!1,openEffect:"elastic",closeEffect:"elastic",nextEffect:"fade",prevEffect:"fade",parent:fancyParent,helpers:{title:{type:"inside"}}};if($("ul.gallery").each((function(){var rel=$(this).find("li:first-child > a:first-child").attr("rel");$('ul.gallery a.fancy[rel="'+rel+'"]').fancybox(fancyOptions)})),$(".carousel.slide").each((function(){var rel="gallery-"+$(this).data("id");$('.carousel.slide a.fancy[rel="'+rel+'"]').fancybox(fancyOptions)})),$("img.pop").parent("a").each((function(){$(this).attr("title",$(this).children("img").attr("alt"))})),$("img.pop").parent("a").fancybox({loop:!1,helpers:{title:{type:"inside"}}}),!are_cookies_enabled()){var msg='<div class="alert alert-error"><i class="fa fa-warning"></i> Your browser does not accept cookies from this site. Please enable cookies to log in.</div><div class="alert alert-info"><i class="fa fa-question-circle"></i> Enabling cookies in <a target="_blank" style="margin: 0; padding: 0;" href="https://support.mozilla.org/en-US/kb/enable-and-disable-cookies-website-preferences">Firefox</a>, <a target="_blank" style="margin: 0; padding: 0;" href="https://support.google.com/accounts/answer/61416?hl=en">Chrome</a>, <a target="_blank" style="margin: 0; padding: 0;" href="http://windows.microsoft.com/en-us/windows-vista/block-or-allow-cookies">Explorer</a></div>';$("#modal-login .modal-header").append(msg)}if($(".panel-expandable > .panel-heading").click((function(e){e.preventDefault();var panel=$(this).closest(".panel-expandable"),expandables=panel.hasClass("panel-has-footer")?".panel-body, .panel-footer":".panel-body";panel.find(".panel-body").is(":visible")?(panel.find(expandables).slideUp("fast"),panel.find(".expander > .fa-minus").removeClass("fa-minus").addClass("fa-plus")):(panel.find(expandables).slideDown("fast"),panel.find(".expander > .fa-plus").removeClass("fa-plus").addClass("fa-minus"))})),$("#modal-find-out-more").css({width:.8*$("#container").width()+"px","margin-left":-.4*$("#container").width()+"px"}),$(".modal-xxl").length){var modalTopPos=Math.round(.07*$(window).height());$(window).width()>1200&&$(".modal-xxl").css({"max-width":$(window).width()>960?"960px":$(window).width()+"px",width:$(window).width()>960?"960px":$(window).width()+"px","margin-left":$(window).width()>960?"-480px":Math.round($(window).width()/2)}),$(".modal-xxl").css("top",modalTopPos+"px"),$(".modal-xxl").on("shown",(function(){var mHeaderH=$(this).find(".modal-header").outerHeight(),mBody=$(this).find(".modal-body"),mBodyH=mBody.outerHeight(),mFooterH=$(this).find(".modal-footer").outerHeight(),bottomOfTheModal=modalTopPos+mHeaderH+mBodyH+mFooterH;if(bottomOfTheModal<$(window).height())mBodyH+=$(window).height()-bottomOfTheModal-60,mBody.css("max-height",mBodyH+"px");else{$(window).scrollTop(0),modalTopPos=10,$(".modal-xxl").css("top",modalTopPos+"px"),bottomOfTheModal=modalTopPos+mHeaderH+mBodyH+mFooterH,availableScroll=bottomOfTheModal-$(window).height()+modalTopPos;var lastPos=-1;$(window).on("scroll",(function(){var s=$(window).scrollTop()>availableScroll?availableScroll:$(window).scrollTop();newPos=modalTopPos-s,newPos!=lastPos&&($(".modal-xxl").css("top",newPos+"px"),lastPos=newPos)}))}}))}function popupHelp(url,title,w,h){var dualScreenLeft=void 0!==window.screenLeft?window.screenLeft:screen.left,dualScreenTop=void 0!==window.screenTop?window.screenTop:screen.top,width,height,left=(window.innerWidth?window.innerWidth:document.documentElement.clientWidth?document.documentElement.clientWidth:screen.width)/2-w/2+dualScreenLeft,top=(window.innerHeight?window.innerHeight:document.documentElement.clientHeight?document.documentElement.clientHeight:screen.height)/2-h/2+dualScreenTop,newWindow=window.open(url,title,"menubar=no,location=no,resizable=0, width="+w+", height="+h+", top="+top+", left="+left);return window.focus&&(newWindow?newWindow.focus():$('<div class="alert alert-warning" style="margin-bottom: 0px;"><p class="help-block">Pop Up blocked. Please allow Pop Ups in your browser settings.</p></div>').insertBefore("body")),newWindow}if($(".open-student-access-help").click((function(e){e.preventDefault();var h=$(window).height()-20,w=$(window).width()<1280?$(window).width():1280;popupHelp(helpURL,"Student Access Help",w,h)})),$(".pop-up-help").click((function(e){e.preventDefault();var url=$(this).attr("href"),title=$(this).data("title"),h=$(window).height()-20,w;popupHelp(url,title,$(window).width()<1280?$(window).width():1280,h)})),$("section.tib-hiddenbox").length){var count=0;$($("section.tib-hiddenbox").get().reverse()).each((function(){var box=$(this),revealButton;$("<a />").attr("class","btn showhider").attr("rel","hiddenBoxContent"+count).attr("style","margin-bottom: 0;").html('<i class="fa fa-eye"></i>').insertBefore(box);var newContainer=$("<div />").attr("class","hidden-content").attr("id","hiddenBoxContent"+count).html(box.html());newContainer.hide(),newContainer.insertBefore(box),box.remove(),count++})),$("a.showhider").on("click",(function(e){var container=$("#"+$(this).attr("rel"));container.is(":hidden")?(container.fadeIn("fast"),$(this).html('<i class="fa fa-eye-slash"></i>')):(container.fadeOut("fast"),$(this).html('<i class="fa fa-eye"></i>'))}))}
			function loadComments(){$.get("pages/comment.php",{action:"get-list",ticket:"IB Docs (2) Team",site_with_comments:"1",general_id:"3",sitename:"chemistry",section_id:"16319"},(function(t){"1"==t.success?($("#comments").html(t.html),"undefined"!=typeof CKEDITOR&&initCommentsEditor()):alert("Error (lc1): please contact support")}),"json")}$(document).ready((function(){loadComments()}));let commentEditor={};function initCommentsEditor(){const t=document.querySelector("#comment-content");t&&CKEDITOR.BasicEditor.create(t,{toolbar:{viewportTopOffset:50,items:["bold","italic","link","subscript","superscript"]},link:{decorators:{addLinkNoFollow:{mode:"automatic",callback:function(t){if(null!=t)return["http://","http://www","https://","https://www","ftp:"].some((o=>t.startsWith(o)))},attributes:{target:"_blank",class:"ck-link",rel:"nofollow"}}}}}).then((function(t){commentEditor=t,commentEditor.execute("heading",{value:"paragraph"})})).catch((function(t){console.error(t)}))}function replaceComment(content,commentId){$("#cancel-comment-post").trigger("click"),$("#comm-"+commentId+" > .comment-content div.comment-text").html(content)}function placeComment(html,fatherId){$("#comment-form").hide(),$("#comment-form textarea").val(""),fatherId>0?($("#comments #comm-"+fatherId).append(html),$("#comments").append($("#comment-form"))):$("#comments").append(html).append($("#comment-form")),$(".comment .fa-arrow-down").removeClass("fa-arrow-down").addClass("fa-reply"),$(".comment-content").removeClass("marked"),$("#comment-form").show("fast")}function update_sticky_comments(arrIds,mode){$.post("pages/edit/update-sticky-comments.php?mode="+mode,{ids:arrIds,ticket:$("#comment-ticket").val()},(function(data){1==data.success?("set"==data.mode&&$("#sticky-"+data.id).parents("div.comment").each((function(e){$(this).find("a.pull-right").first().addClass("sticky"),$(this).find("a.pull-right").first().attr("title","Unmark as important")})),"unset"==data.mode&&($("#sticky-"+data.id).removeClass("sticky"),$("#sticky-"+data.id).attr("title","Mark as important"),$("#sticky-"+data.id).closest("div.comment").find("div.comment").each((function(e){$(this).find("a.pull-right").first().removeClass("sticky"),$(this).find("a.pull-right").first().attr("title","Mark as important")})))):alert(data.error)}),"json")}"undefined"!=typeof CKEDITOR&&initCommentsEditor(),$("section#comments").on("click","#edit-comment",(function(e){e.preventDefault();var commentId=$("form#comment-form #comment-mode").val(),commentContent=commentEditor.getData(),ticket=$("#comment-ticket").val(),sectionId=$("#section-id").val();$.post("pages/comment.php",{action:"edit",comment_id:commentId,content:commentContent,ticket:ticket},(function(data){"0"==data.success?alert(data.error):replaceComment(data.text,commentId)}),"json")})),$("section#comments").on("click","a.edit-comment",(function(e){e.preventDefault(),$(".comment .hidden").removeClass("hidden");var commentId=$(this).data("comment-id"),form=$("form#comment-form"),text=$("#comm-"+commentId+" > .comment-content div.comment-text").html();commentEditor.setData(text),$("form#comment-form textarea").val(""),$("form#comment-form textarea").val(text),$("#comm-"+commentId+" > .comment-content > img").addClass("hidden"),$("#comm-"+commentId+" > .comment-content > div.comment-text").addClass("hidden"),$("#comm-"+commentId+" > .comment-footer").addClass("hidden"),$("#comm-"+commentId+" > .comment-content").append(form),$("form#comment-form #submit-comment").hide(),$("form#comment-form #edit-comment").show(),$("form#comment-form #cancel-comment-post").show(),$("form#comment-form #comment-mode").val(commentId),fancyScrollTo("comment-form"),$("form#comment-form textarea").focus()})),$("section#comments").on("click","#submit-comment",(function(e){e.preventDefault();var commentContent=commentEditor.getData(),fatherId=$("#father-comment").val(),ticket=$("#comment-ticket").val(),sectionId=$("#section-id").val();$.post("pages/comment.php",{action:"post",section_id:sectionId,father_id:fatherId,content:commentContent,ticket:ticket},(function(data){if("0"==data.success)alert(data.error);else{commentEditor.setData(""),placeComment(data.html,fatherId),$("form#comment-form #cancel-comment-post").hide();var n=0;$("#n-comments").text().length>0&&(n=parseInt($("#n-comments").text())),$("#n-comments").text(n+1)}}),"json")})),$("section#comments").on("click","a.reply-comment",(function(e){e.preventDefault(),$(".comment .fa-arrow-down").removeClass("fa-arrow-down").addClass("fa-reply"),$(".comment-content").removeClass("marked");var form=$("form#comment-form"),fatherId=$(this).parent().parent(".comment").attr("rel");form.find("#father-comment").val(fatherId),$(this).parent().parent(".comment").find("> .reply-area").append(form),$(this).find(".fa-reply").removeClass("fa-reply").addClass("fa-arrow-down"),$(this).parent().prev(".comment-content").addClass("marked"),$("form#comment-form #cancel-comment-post").show(),fancyScrollTo("comment-form"),$("form#comment-form textarea").focus()})),$("section#comments").on("click","#cancel-comment-post",(function(e){e.preventDefault(),$(".comment .hidden").removeClass("hidden"),$(".comment .fa-arrow-down").removeClass("fa-arrow-down").addClass("fa-reply"),$(".comment-content.marked").removeClass("marked"),commentEditor.setData("");var form=$("form#comment-form");$("section#comments").append(form),$("form#comment-form #father-comment").val("0"),$("form#comment-form textarea").val(""),$("form#comment-form #comment-mode").val("new"),$("#edit-comment").hide(),$(this).hide(),$("#submit-comment").show()})),$("section#comments").on("click","a.delete-comment",(function(e){var commentId=$(this).data("comment-id"),isFather=$("#comm-"+commentId).children(".comment").length>0,ticket=$("#comment-ticket").val(),msg="You are going to delete a comment.\n\nThis action cannot be undone.\n\nAre you sure?";isFather&&(msg="You are going to delete a comment and all its replies.\n\nThis action cannot be undone.\n\nAre you sure?"),confirm(msg)&&$.post("pages/comment.php",{action:"delete",comment_id:commentId,is_father:isFather,ticket:ticket},(function(data){if("0"==data.success)alert(data.error);else{$("#comm-"+commentId+".comment").replaceWith(data.text);var n=0;$("#n-comments").text().length&&(n=parseInt($("#n-comments").text())),$("#n-comments").text(n-parseInt(data.deleted))}}),"json"),e.preventDefault(),e.stopPropagation()})),$("section#comments").on("click","a.pull-right",(function(e){e.preventDefault();var arrayIds=[];$(this).hasClass("sticky")?(arrayIds.push($(this).closest("div.comment").attr("rel")),$(this).closest("div.comment").find("div.comment").each((function(e){arrayIds.push($(this).attr("rel"))})),update_sticky_comments(arrayIds,"unset")):($(this).parents("div.comment").each((function(e){arrayIds.push($(this).attr("rel"))})),update_sticky_comments(arrayIds,"set"))}));$('#tl-tabs a').click(function (e) {e.preventDefault();$(this).tab('show');});$('img.ico[src="/img/icons/comments.png"]').each((function(){var comment=$(this).attr("title");$(this).removeAttr("title"),$(this).wrap('<a class="tib-popover" href="#" data-content="'+comment+'" data-togle="popover" data-placement="top" />')})),$('img.ico[src="img/icons/comments.png"]').each((function(){var comment=$(this).attr("title");$(this).removeAttr("title"),$(this).wrap('<a class="tib-popover" href="#" data-content="'+comment+'" data-togle="popover" data-placement="top" />')})),$(".tib-popover").popover({html:!0,trigger:"hover",delay:{show:300,hide:300},placement:function(context,source){var position=$(source).position();return position.top>200?"top":position.left<515?"right":position.top<200?"bottom":position.left>515?"left":"top"}}).click((function(e){e.preventDefault()}));var carouselTime=6500;$("div.carousel.slide").carousel({interval:carouselTime}),$(".tib-indicators > img").click((function(){var index=$(this).index(),container;$(this).closest(".carousel.slide").carousel(index)}));
$('a.btn.showhider').click(function(e) {
    var showHiderId = $( this ).attr('rel');
    if ( $('#'+showHiderId).find('iframe').length > 0 ) {
        $('#'+showHiderId+' iframe').each(function() {
            if ( $(this).attr('src').indexOf('.pdf') > 0 ) {
                this.contentWindow.location.reload(true);
            }
        });
    }
});

var hTopmenu = $('#topmenu').height();
var n = 0;
$('nav.top-nav > ul > li').each(function(k, e) {
    if (n > 1) {
        var diff = hTopmenu-(e.offsetTop+e.offsetHeight);
        $(e).find(' > ul ').css('margin-top', '-'+diff+'px');
    }
    n++;
});

		});
	</script>
</body>
</html>